On Fri, 2016-07-29 at 23:33 +0300, Sagi Grimberg wrote:
> >
> > When the low level driver exercises the hot unplug they would call
> > rdma_cm cma_remove_one which would fire DEVICE_REMOVAL event to all
> > cma
> > consumers. Now, if consumer doesn't make sure they destroy all IB
> > objects created on that IB device instance prior to finalizing all
> > processing of DEVICE_REMOVAL callback, rdma_cm will let the lld to
> > de-register with IB core and destroy the IB device instance. And if
> > the
> > consumer calls (say) ib_dereg_mr(), it will crash since that dev
> > object
> > is NULL.
>
> Yea... this used to work but sort of broke somewhere...
>
> Thanks Raju, the patch looks good,
>
> Acked-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
>
> Doug,
>
> Can you add a stable tag to this when picking it up?
>
I can add a stable tag, but it helps to know what versions of stable it
is expected to apply to.
--
Doug Ledford <dledford@xxxxxxxxxx>
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